ND
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Dao, Ophthalmologist in Waterbury, CT?
Dr. Nhu-Y Thi Dao, MD is an Ophthalmologist, who primarily practices in Waterbury, CT with 2 additional practice locations. Dr. Dao is fluent in English and Spanish, and is currently seeing new patients. Dr. Dao’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Dao’s office at (203) 597-9100.
What languages does Dr. Dao speak?
Dr. Dao and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does an Ophthalmologist like Dr. Dao typically treat?
As an Ophthalmologist, Dr. Dao diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Dao. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Cataract
- Combined Age-Related Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
- Mixed Type Cataract
- Multiple Cataract Types
- Cloudy Lens
- Lens Opacity
- Eye Clouding
ICD-10 Codes:
- H25812: Combined forms of age-related cataract, left eye
- H25811: Combined forms of age-related cataract, right eye
- H269: Unspecified cataract
- H25813: Combined forms of age-related cataract, bilateral
- H2511: Age-related nuclear cataract, right eye
Also known as:
- Type 2 Diabetes with Diabetic Cataract
- Cataract
- Diabetes Type 2
- Type 2 diabetes
- Diabetes-related cataract
- Cloudy lens from diabetes
- Diabetic eye cataract
ICD-10 Codes:
- E1136: Type 2 diabetes mellitus with diabetic cataract
Also known as:
- Pre-Procedure Lab Tests
- Pre-op blood work
- Lab tests before surgery
- Pre-treatment lab assessment
ICD-10 Codes:
- Z01812: Encounter for preprocedural laboratory examination
What procedures does an Ophthalmologist like Dr. Dao typically perform?
As an Ophthalmologist, Dr. Dao performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Dao. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Cataract Removal with Lens Implant
- Extracapsular cataract extraction
- Phacoemulsification
- IOL implantation
CPT Codes:
- 66984: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification); without endoscopic cyclophotocoagulation
Also known as:
- Complex Cataract Removal with Lens Implant
- Advanced Cataract Surgery
- Phacoemulsification with IOL
- Complex Extracapsular Cataract Extraction
CPT Codes:
- 66982: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1-stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification), complex, requiring devices or techniques not generally used in routine cataract surgery (eg, iris expansion device, suture support for intraocular lens, or primary posterior capsulorrhexis) or performed on patients in the amblyogenic developmental stage; without endoscopic cyclophotocoagulation
Does Dr. Dao accept my insurance?
Dr. Dao accepts most major insurance plans. Important: Please call our office at (203) 597-9100 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Dao accept in Waterbury, CT?
Dr. Dao in Waterbury, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Humana
Medicare
State of Connecticut
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Dao's office located?
Dr. Nhu-Y Thi Dao's Primary Practice
1201 W Main St Ste 100
Waterbury, CT 06708
(203) 597-9100
What is Dr. Dao's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Dao's National Provider Identifier (NPI) number is 1346506094.
What common questions do patients ask about Dr. Dao?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Dao
What is Dr. Nhu-Y Thi Dao's specialty?
Dr. Dao is a Ophthalmologist near Waterbury, CT.
What does an Ophthalmologist do?
An ophthalmologist possesses the knowledge and professional skills required to deliver comprehensive eye and vision care. These medical doctors are trained to diagnose, monitor, and treat all ocular and visual disorders, whether through medical or surgical interventions. Their expertise encompasses a wide range of issues affecting the eye and its structures, including the eyelids, orbit, and visual pathways. Additionally, ophthalmologists prescribe vision services, such as glasses and contact lenses, to help patients achieve optimal visual health.
Is this Dr. Nhu-Y Thi Dao affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Dao is affiliated with Saint Mary's Hospital - Waterbury, Ct, Smilow Cancer Hospital At Yale New Haven, Griffin Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Ophthalmologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Ophthalmologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Nhu-Y Thi Dao accepting new patients in Waterbury, CT?
Yes, Dr. Nhu-Y Thi Dao is accepting new patients at this time.
Does Dr. Nhu-Y Thi Dao offer online booking?
Please contact Dr. Dao's office at (203) 597-9100 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Nhu-Y Thi Dao?
Please contact Dr. Dao's office at (203) 597-9100 for information regarding telehealth appointment availability or for scheduling assistance.
Other Ophthalmologist Near Waterbury, CT
AR
Ophthalmologist
Dr. Aron Rose, MD is an Ophthalmologist, who primarily practices in Waterbury, CT with 1 additional practice location. He is board certified.
Waterbury, CT

Retina Specialist
Dr. Craig Sklar, MD is a Retina Specialist, who primarily practices in Waterbury, CT with 1 additional practice location. He is board certified.
Waterbury, CT
JD
Ophthalmologist
Dr. Joan Draper, MD is an Ophthalmologist, who primarily practices in Waterbury, CT with 2 additional practice locations. She has been practicing for over 35 years.
Waterbury, CT